Is it true that Darwin overthrew evolution in his later years?

Darwin has mentioned the defects of his theory in the Origin of Species, instead of overthrowing the theory of evolution.

Darwin also admitted that his theory means not only the gradual development of organisms, but also their organs. In the sixth chapter of the Origin of Species, he provided the following test to test that his theory may be wrong: "If we can prove the existence of any complex organs, they may not have been formed through countless successive minor modifications, and my theory will surely collapse."

From the perspective of cell and molecular biology in 2 1 century, the result is that every organ failed Darwin's test, because every organ depends on complex biological structure if it wants to play its role. Even biological macromolecules themselves have complexity that cannot be gradually increased.

Therefore, the central defect of Darwinism is that it cannot explain the irreducible complexity of molecular biology. This is not only manifested in the molecular level, but also in the origin of life, eukaryotic cells, gender, and new forms that suddenly appear in fossil records-all of which are completely opposite to the whole Darwin model.